--- features: - Add Lets Encrypt TLS certificate service integration into Openstack deployment. Enables trusted TLS certificate generation option for secure communcation with OpenStack HAProxy instances using ``letsencrypt_email``, ``kolla_internal_fqdn`` and/or ``kolla_external_fqdn`` is required. One container runs an Apache ACME client webserver and one runs Lego for certificate retrieval and renewal. The Lego container starts a cron job which attempts to renew certificates every 12 hours.